Science报道电子水凝胶触摸材料能写字玩游戏弹钢琴：
【Gaofenzi.org前沿进展短讯】8月12日Science报道了韩国研究人员使用一种用含有LiCl的聚丙酰胺水凝胶材料制作的透明触摸板，实现了其写字、玩游戏、弹钢琴等类似现目前电子触摸材料的功能，而且这种水凝胶电子触摸板具有很强的可拉伸弯曲性能，可以适应各种变形仍能保持其使用功能，另外材料非常透明，具有高达98%的光谱透过率。这项研究既是水凝胶材料拓展其应用领域的一大突破，或许也是电子柔性触摸材料的一大突破。下图演示：将水凝胶材料通过电路连接电脑，通过手指在水凝胶材料上触摸写字。。
观看上述材料的动画视频演示请点击：微信视频，另外，微信回复“水凝胶”可阅读更多精彩内容。
参考文献：Highly stretchable, transparent ionic touch panel，Chong-Chan Kim1,*, Hyun-Hee Lee1,*, Kyu Hwan Oh1,2, Jeong-Yun Sun1,2,†，Science 12 Aug 2016: Vol. 353, Issue 6300, pp. 682-687，DOI: 10.1126/science.aaf8810
摘要：Because human-computer interactions are increasingly important, touch panels may require stretchability and biocompatibility in order to allow integration with the human body. However, most touch panels have been developed based on stiff and brittle electrodes. We demonstrate an ionic touch panel based on a polyacrylamide hydrogel containing lithium chloride salts. The panel is soft and stretchable, so it can sustain a large deformation. The panel can freely transmit light information because the hydrogel is transparent, with 98% transmittance for visible light. A surface-capacitive touch system was adopted to sense a touched position. The panel can be operated under more than 1000% areal strain without sacrificing its functionalities. Epidermal touch panel use on skin was demonstrated by writing words, playing a piano,
and playing games.